Title:
RECIPROCATING ENGINE
Document Type and Number:
WIPO Patent Application WO/2004/001215
Kind Code:
A1
Abstract:
A reciprocating engine (1), comprising a cylinder (2), a piston (3) reciprocatingly moving in X−direction inside the cylinder (2), a connecting rod (5) rotatably connected, at a small end part (4), to the piston (3) through a piston pin (4a), ring grooves (7, 8) disposed adjacently to each other in X− direction and formed in the side peripheral surface (6) of the piston (3), piston rings (9, 10) fitted into the ring grooves (7, 8), a dividing means (14) dividing an annular space (11) formed between the piston rings (9, 10) into a thrust side semi−annular space (12) and an anti−thrust side semi−annular space (13), and a communication means (16) allowing the space (12) to communicate with a combustion chamber (15) for burning air−fuel mixture therein.
Inventors:
BANDO SHIGERU (JP)
Application Number:
PCT/JP2002/006184
Publication Date:
December 31, 2003
Filing Date:
June 20, 2002
Export Citation:
Assignee:
BANDO KIKO CO (JP)
BANDO SHIGERU (JP)
BANDO SHIGERU (JP)
International Classes:
F02B23/00; F02F1/18; F02F1/00; F02F3/00; F02F5/00; F16J1/00; F16J9/06; F02B19/00; F02B19/10; F02B23/08; (IPC1-7): F02F3/00; F02F1/18; F02F5/00; F02B23/00
Domestic Patent References:
| WO1993006356A1 | 1993-04-01 |
Foreign References:
| JPH0526106A | 1993-02-02 | |||
| JPH04347353A | 1992-12-02 | |||
| US5894824A | 1999-04-20 |
Other References:
See also references of EP 1533509A4
Attorney, Agent or Firm:
Takada, Takeshi (Hanabusa Building 12-6, Minamiaoyama 5-chom, Minato-ku Tokyo, JP)
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